Battery warning light
#1
07-29-2011, 02:05 PM
Join Date: May 2008
Location: Fayetteville, AR
Posts: 417
Rep Power: 99 
Battery warning light
Hi guys,
I took car out earlier and this light came on. Volt gauge read 13 and increased a little with revs. I checked battery and it's ok. I checked alternator and it read 13.3 volts so it's ok. I'm thinking my belt was slipping dropping the alternator output thus tripping the light. I am gonna check drive belt tensioner and maybe replace. The light has not come back on since I took the battery out and tested it. Connections were all secure. I have 52k miles. Any thoughts? Thanks!
I took car out earlier and this light came on. Volt gauge read 13 and increased a little with revs. I checked battery and it's ok. I checked alternator and it read 13.3 volts so it's ok. I'm thinking my belt was slipping dropping the alternator output thus tripping the light. I am gonna check drive belt tensioner and maybe replace. The light has not come back on since I took the battery out and tested it. Connections were all secure. I have 52k miles. Any thoughts? Thanks!
#5
08-02-2011, 06:01 PM
Join Date: May 2008
Location: Fayetteville, AR
Posts: 417
Rep Power: 99
Here goes again...
Replaced drive belt and ordered tensioner just in case. Started and light on again with 12 volts on gauge and no accessories on. Alternator I'm thinking.....
#6
08-02-2011, 10:03 PM
Sounds like the alternator is dying a slow death. This is what happened to me. At one point when I first started the engine, the gauge read close to 13 and then started to go down as I drove more until it was below 12 Volts.
R&R and the voltage gauge reads just under 14 Volts with all accessories on.
R&R and the voltage gauge reads just under 14 Volts with all accessories on.
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